Finding the Fourth Proportional to 2,503.15, 3,454.16 and 1,383.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.15 : 3,454.16 = 1,383.98 : x
2. Step 2: Convert to fraction form
   2,503.15/3,454.16 = 1,383.98/x
3. Step 3: Cross multiply
   2,503.15x = 3,454.16 × 1,383.98
4. Step 4: Simplify right side
   2,503.15x = 4,780,464.17
5. Step 5: Solve for x
   x = 4,780,464.17/2,503.15
6. Step 6: Final answer
   x = 1,909.78